Java Math Exercises: Test if a double number is an integer
Java Math Exercises: Exercise-3 with Solution
Write a Java program to test if a double number is an integer.
Sample Solution:
Java Code:
import java.util.*;
public class Example3 {
public static void main(String[] args) {
double d_num = 5.44444;
if ((d_num % 1) == 0) {
System.out.println("It's not a double number");
} else {
System.out.println("It's a double number");
}
}
}
Sample Output:
It's a double number
Flowchart:

Java Code Editor:
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Previous: Write a Java program to get whole and fractional parts from a double value.
Next: Write a Java program to round a float number to specified decimals.
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